JPH01220675A - Automatic receiving and supplying apparatus for plate piece - Google Patents

Abstract

PURPOSE:To obtain an apparatus capable of receiving and supplying a plate piece in a short time by disposing a pair of right and left conveyers which can be connected to a line and are adapted to support both side portions of the plate piece in such a manner as to separate above a stock portion where plate pieces are placed, and providing means for transferring the plate piece in the substantially vertical direction between the stock portion and the conveyers. CONSTITUTION:A suction pad 4 of a sucking cylinder 5 is lowered to suck the corner portion of a board (a) and raised. At this time, right and left belt conveyers 3, 3 are separated from each other by an air cylinder 25, so that there is no obstacle to passing the board (a) between the conveyers 3, 3. The board (a) is lowered by the sucking cylinder 5 and placed on the belt conveyers 3, 3 approaching the position supporting both side portions of the board (a). After that, the belt conveyers 3 carry out the board (a) to a line (b). In case of receiving the board (a) from the line (b), the above operation is reversed. Thus, the plate piece can be received and supplied in a short time, and an apparatus with a small installation area can be attained.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention is an automatic method for receiving and stocking plate-like bodies such as printed circuit boards from a line, and for supplying the stocked plate-like bodies to the line. The present invention relates to a receiving and supplying device.

(Prior art) In the conventional automatic receiving and supplying device of this type,
Those disclosed in Japanese Patent Application Laid-Open No. 6438, Japanese Patent Application Laid-Open No. 175360/1983, and the like are known.

In these conventional examples, as shown in FIG.
When receiving a plate-like object a from line C, the transfer means d transfers the plate-like object a from line C to the stock section, and then transfers the plate-like object a from line C to the stock section. body a
When supplying to line C, the plate-shaped body a of the stock section is transferred to line C.

(Problem to be Solved by the Invention) However, in the above conventional example, when the plate-shaped body is transferred, the plate-shaped body moves not only in the vertical direction (■) but also in the horizontal direction H, and the amount of movement is large. There is a problem that the transfer time becomes long and it takes time to receive and supply the plate-like bodies.

Furthermore, since the plate-shaped body is moved in the horizontal direction H, the operating space of the device is expanded in the horizontal direction, making it difficult to reduce the installation area.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, an object of the present invention is to provide an automatic receiving and supplying device for plate-shaped bodies that can shorten the time required for receiving and supplying plate-shaped bodies and has a small installation area.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a pair of left and right pairs that are connectable to a line and support both sides of the plate-like body above the stock part on which the plate-like body is placed. The conveyor is arranged to be removable, and a transfer means is provided for transferring the plate-like object in a substantially vertical direction between the stock part and the conveyor, and the plate-like object passes between the conveyors. The present invention is characterized in that a control means is provided for controlling the conveyors to open when the conveyors are moved.

(Function) According to the above configuration, the plate-like object can be transferred in a substantially vertical direction between the stock section and the conveyor by the transfer means. When the plate-like object passes between the pair of left and right conveyors, these conveyors are separated to the left and right under the control of the control means, so there is no problem in transferring the plate-like object. Since the conveyor can be connected to the line, the plate-like bodies carried from the line to this conveyor can be stocked in the stock section, and the plate-like bodies stocked in the stock section can be transferred from the conveyor to the line. It can be carried out.

In this way, the plate-like object can be transferred by simply moving the plate-like object in a substantially vertical direction, and since the amount of movement can be reduced, the transfer time can be shortened. It is possible to receive and supply bodies in a short time.

Further, since the conveyor is located above the stock part and the transfer means only moves the plate-like object in a substantially vertical direction, the entire apparatus can be made vertical, and the installation area can be reduced.

(Example) An example of the present invention will be described based on FIGS. 1 to 7.

In the overall arrangement shown in FIGS. 1 and 2, a fork (stock portion) 2 on which printed circuit boards (plate-shaped bodies) a are placed in a stacked state is provided below within a frame 1 of the apparatus. A pair of left and right belt conveyors (conveyors) 3.3 are disposed above the fork 2. The conveyor surfaces of these conveyors 3 are at the same height as the conveyance surface of line b on the front side of the apparatus, and are located on both left and right sides with respect to the receiving direction P or supplying direction Q of the substrates a. Above each belt conveyor 3, suction cylinders 5 for raising and lowering the suction pads 4 are installed at 2 locations in the front and back, for a total of 4
They are placed in each location. These suction pads 4 and suction cylinders 5 constitute the transfer means of the present invention. Also frame body 1
The operating section 6 installed above is equipped with a microcomputer (control means) 7 that controls the entire device.

The fork 2 is guided and supported so as to be movable in the vertical direction in a cantilevered state via a pair of guide rollers 9 by a pair of front and rear guide rails 8.8 disposed vertically within the frame 1. Hydraulic cylinder 10 erected between the guide rails 8.8
A sprocket 11 is rotatably provided at the tip of the rod, and one end of a chain 12 wound around the sprocket 11 is connected to the fork 2. The other end of the chain 12 is connected to the lower end of the cylinder 10. Mata fork 2
A plate-shaped pallet 13 is placed on top, and the substrates a are loaded on this pallet 13. A light emitter 26 and a light receiver 27 are attached to opposite positions of the frame 1 to detect whether the top layer of the substrate a loaded on the fork 2 is at a predetermined height. In addition, 14 is pallet 13
This is a guide for regulating the position of the substrate a placed thereon.

The belt conveyor 2 includes a support stand 16 having a U-shaped cross section, and a conveyor belt 18 wound around pulleys 17 disposed at both ends of the support stand 16. It is configured to be driven by a motor 19. A position regulating wall 20 is erected on the upper surface side of the support stand 16 to regulate the position of the substrate a on the conveyor 3. The conveyor 3 on the right side is supported by a fixed bracket 21, and the conveyor 3 on the left side is supported by a movable bracket 22. A guide block 24 is disposed before and after each bracket 21, 220, through which a rod 23 fixed to the support stand 16 of each conveyor 3 is inserted, and guides both conveyors 3.3 in the direction of separating them left and right. Further, an air cylinder 25 for separating both conveyors 3.3 under the control of the microcomputer 7 is disposed on the platen 1-2122.

The movable bracket 22 is guided and supported at both ends by a pair of front and rear guide rails 28 and 28 installed horizontally on the frame 1 via a slider 29 so as to be movable in the left-right direction. A feed screw 30 is disposed above the movable bracket 22, and as shown in FIG. 2, both ends of the feed screw 30 are rotatably supported by bearings 31 attached to the left and right sides of the frame 1. This feed screw 30
is screwed into a driven block 32 erected on the upper surface side of the movable bracket 22, and by rotation, the position of the movable bracket 22 can be adjusted in the left-right direction. Further, a motor 33 for rotationally driving the feed screw 30 is disposed above the left side of the feed screw 30. In addition, feed screw 3
Attach the disk 34 to the left end of the
A photocoupler 35 is attached to the frame 1 to detect the rotation speed and rotation angle.

By adjusting the movable bracket 22, the left conveyor 3 can be moved, and as shown in FIG. 3, the dimensions between the left and right conveyors 3.3 can be changed to accommodate substrates a of different dimensions. The range of change is between the maximum dimension shown by the solid line in FIG. 3 and the minimum dimension shown by the imaginary line in FIG. In addition, a stopper 36 is provided on the support stand 16 of each conveyor 3 so as to be retractable.

This stopper 36 protrudes during the receiving operation to stop the substrate a at a predetermined position (FIG. 3 - dashed line), and when the device is used to connect the front and back lines b, enters and allows the substrate a to pass.

Further, a photoelectric sensor 37 is attached to the back side of the frame 1 in the receiving direction P to detect whether the substrate a has reached the predetermined position.

The suction cylinder 5 is held by the fixed bracket 21 or the movable bracket 22 via a support piece 38. The support piece 38 on the near side of each bracket 21,22 is
Guide groove 39 provided on the top surface of the bracket 21.22
It is possible to move forward and backward. 40 is this support piece 3
8 to the guide groove 39.

A striking cylinder 41 is disposed approximately at the center of these four suction cylinders 5, and a striking pad 42 made of urethane rubber is attached to the tip of the rod to constitute a device for preventing two printed circuit boards a from hanging. The striking cylinder 41 is attached to the frame 1
It is held via a horizontally-shaped bracket 43.

The operation of the apparatus for automatically receiving and supplying plate-shaped bodies constructed as described above will be explained with reference to FIGS. 5 to 7.

First, there is a case where printed circuit boards a in stock are supplied to line b.

The suction pad 4 of the suction cylinder 3 descends, attracts four corners of the substrate a, and rises as shown in FIG. At this time, the left and right belt conveyors 3.3 are connected to the air cylinder 2.
5, the substrates a can pass between these conveyors 3.3 without any hindrance. Further, as the substrate a on the fork 2 decreases, the hydraulic cylinder 10 is driven to raise the fork 1.
The height position of the top layer of the upper substrate a is kept constant.

Near the upper limit position of the suction pad 4, the striking cylinder 39 operates as shown in FIG. The dimensions of the printed circuit board a of the hitting pad 40 are 500 m x 500 m +
In the case of 1 to 5 vertical movements per second, the upper limit is about 4C11 and the lower limit is about 1C11 to press down the center part of the substrate a held by the suction cylinder 5 by suction. do. Thereby, when two substrates a are suspended, the first substrate a can be forcibly deformed into a curved shape and vibrated.

As a result, the second substrate a, which is attached to the lower surface of the substrate a, deforms accordingly. At this time, the second substrate a tries to separate from the first substrate a by its own elastic restoring force, and the first substrate a vibrates and tries to shake off the second substrate a. Together with the action, both substrates a
, a can be easily separated. As a result, the second board a can be allowed to fall naturally due to its own weight, and hanging of two boards a can be prevented. Furthermore, since the striking pad 40 having excellent elasticity is attached to the rod end of the striking cylinder 39, it is possible to prevent a strong impact force from being applied to the substrate a during striking.

The substrate a that has been hit in this manner is lowered by the suction cylinder 5 and placed on the belt conveyor 3. At this time, the left and right belt conveyors 3.3 are brought close to positions where the air cylinders 25 support both sides of the substrate a.

After the transfer of the substrate a is completed, the suction cylinder 5 stops the suction operation, and the suction pad 4 is slightly raised. Thereafter, the conveyor motor 19 is driven, and the belt conveyor 2 carries out the substrate a to line b. In this way, the substrate a can be supplied.

When receiving substrate a from line b, the above operation is reversed. That is, the substrate a carried in by the belt conveyor 2 from the line b comes into contact with the stopper 36 and is held at a predetermined position (
Fig. 3 - Dot-dashed line). At the same time, the photoelectric sensor 37 detects the tip of the substrate a and stops driving the conveyor motor 19 (FIG. 7).

After the suction cylinder 5 suctions the corner of the substrate a and once raises the suction pad 4, the belt conveyor 3.3 separates from side to side. At this time, the substrate a is not struck.

The suction cylinder 5 transfers the substrate a onto the top layer substrate a loaded on the fork 2. As the number of substrates a on the fork 2 increases, the hydraulic cylinder 10 is driven to lower the fork 2 and keep the height of the top layer constant. In this way, the substrate a can be received and stocked.

The present invention can be configured in various ways other than those shown in the above embodiments.

For example, in the above embodiment, a belt conveyor is used to support both sides of the plate-shaped body and convey the plate-shaped body, but any known conveying means may be used. In this case, supporting the plate-like body and transporting the plate-like body may be performed by separate members.

Further, the number of suction and holding means to be provided can be arbitrarily designed as required.

(Effects of the Invention) According to the present invention, it is possible to perform a receiving operation and a supplying operation of a plate-like object in a short time, and to provide a compact automatic receiving and feeding device for a plate-like object that is vertical and has a small installation area. be able to.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is a longitudinal front view, Fig. 3 is a plan view of the unrouted conveyor, Fig. 4 is a plan view of the fork, and Fig. 5 is a print in stock. FIG. 6 is an action diagram showing a state in which a printed circuit board is being sucked, FIG. 6 is an action diagram showing a state in which a rising printed circuit board is struck, and FIG. 7 is an action diagram showing a state in which a printed circuit board is transferred to a belt conveyor. FIG. 8 is a side view of the conventional example.

Claims (1)

[Claims] (1) A pair of left and right conveyors that can be connected to a line and support both sides of the plate are releasably arranged above the stock part on which the plate is placed, and A transfer means is provided for transferring between the stock section and the conveyor in a substantially vertical direction, and a control means is provided for controlling the conveyors to separate when the plate-like object passes between the conveyors. An automatic receiving and supplying device for plate-shaped bodies, characterized in that: